Never miss a story

Get subscribed to our newsletter


×
This study shows that facial video can contain some information about systolic blood pressure. Pixabay

In good news for people who have blood pressure (BP) problems, monitoring BP might one day become as easy as taking a video selfie.

Researchers, including one of an Indian-origin, have tested a technology called transdermal optical imaging that measures blood pressure by detecting blood flow changes in smartphone-captured facial videos.


“This study shows that facial video can contain some information about systolic blood pressure,” said Indian-origin researcher Ramakrishna Mukkamala, Professor at the Michigan State University.

Ambient light penetrates the skin’s outer layer allowing digital optical sensors in smartphones to visualise and extract blood flow patterns, which transdermal optical imaging models can use to predict blood pressure.


In good news for people who have blood pressure (BP) problems, monitoring BP might one day become as easy as taking a video selfie. Pixabay

“High blood pressure is a major contributor to cardiovascular disease — a leading cause of death and disability. To manage and prevent it, regular monitoring of one’s blood pressure is essential,” said study lead author Kang Lee, Professor at the University of Toronto in Canada.

“Cuff-based blood pressure measuring devices, while highly accurate, are inconvenient and uncomfortable. Users tend not to follow American Heart Association guidelines and device manufacturers’ suggestion to take multiple measurements each time,” Lee said.

For the study, published in the journal Circulation: Cardiovascular Imaging, the research team measured the blood flow of 1,328 Canadian and Chinese adults by capturing two-minute videos using an iPhone equipped with transdermal optical imaging software.

The researchers compared systolic, diastolic and pulse pressure measurements captured from smartphone videos to blood pressure readings using a traditional cuff-based continuous blood pressure measurement device.

Also Read- Sri Lanka to Ban Coloured Plastic Water Bottles and Wrappers

The researchers used the data to teach the technology how to accurately determine blood pressure and pulse from facial blood flow patterns.

They found that on average, transdermal optical imaging predicted systolic blood pressure with nearly 95 per cent accuracy and diastolic blood pressure with pulse pressure at nearly 96 per cent accuracy.

The technology’s high accuracy is within international standards for devices used to measure blood pressure, according to Lee.


Researchers, including one of an Indian-origin, have tested a technology called transdermal optical imaging that measures blood pressure by detecting blood flow changes in smartphone-captured facial videos. Pixabay

Researchers videoed faces in a well-controlled environment with fixed lighting, so it is unclear whether the technology can accurately measure blood pressure in less controlled environments, including homes.

Also Read- Google to Neutralise Carbon Emission for Device Shipments by 2020

Also, while the study participants had a variety of skin tones, the sample lacked subjects with either extremely dark or fair skin. (IANS)


Popular

The value of the HUH Token increases with time in the wallet, which means that the more tokens you hold, the more tokens you get.


For those in the know, cryptocurrency represents an extraordinary financial opportunity; one of the most profitable and probably widespread characteristics of decentralised money is its capacity to disseminate enthusiasm. This creates an atmosphere unlike any other, in which attention is almost a commodity. Attention is valuable, and one of the most effective mechanisms for capitalising on focused attention is via memes. HUH Token and GM Wagmi are two cryptocurrencies that strive to apply this method.

Keep Reading Show less

While HUH Token is not yet available on the market.


In recent weeks, Fantom and OKB have established themselves as popular cryptocurrencies. Both have experienced significant growth over the last three months and have established themselves as trending cryptos.

Keep Reading Show less

HUH Token is already in presale and will be accessible to everyone shortly.


Loopring and Sushiswap both have proved their profit-generating capabilities in the past, and HUH Token presents itself as a fresh option for people to join early. However, it is hard to determine with precision what the future holds for any of these cryptos. Nevertheless, utilising the existing data from Loopring and Sushiswap, insights may be gained and the possibilities of new currencies like HUH Token can be explored. An Ethereum-based programme called Loopring intends to promote an extensive network of people to run a platform that enables them to build crypto-asset exchanges. In addition to using Loopring's own native currency (LRC), this programme also includes a variety of other currencies.

Keep reading... Show less